Package 

Class MaterialProvider.MaterialKey

  • 
public class MaterialProvider.MaterialKey

    MaterialKey specifies the requirements for a requested glTF material.The provider creates Filament materials that fulfill these requirements.

    • Constructor Detail

      • MaterialProvider.MaterialKey

        MaterialProvider.MaterialKey()

    • Method Detail

      • constrainMaterial

         void constrainMaterial(@NonNull() @Size(min = 8) Array<int> uvmap)

        Populate UV map according to the material key, altering latter if required.Filament supports up to 2 UV sets. glTF has arbitrary texcoord set indices, but itallows implementations to support only 2 simultaneous sets. Here we build a mappingtable with 1-based indices where 0 means unused. Note that the order in which we droptextures can affect the look of certain assets. This "order of degradation" isstipulated by the glTF 2.0 specification.

        Parameters:
        uvmap - Output argument that gets populated with a small table that maps from aglTF uv index to a Filament uv index (0 = UNUSED, 1 = UV0, 2 = UV1).